公开(公告)号：JPH107639A

公开(公告)日：1998-01-13

申请号：JP1299397

申请日：1997-01-27

Applicant: STANDARD OIL CO OHIO

Inventor： GIBSON JAMES S ,  RINKER JEFFREY E ,  WACHTENDORF PAUL T ,  GODBOLE SANJAY P

IPC: C07B63/00 ,  C07C5/08 ,  C07C253/26 ,  C07C253/32 ,  C07C253/34 ,  C07C255/03 ,  C07C255/08

Abstract: PROBLEM TO BE SOLVED: To obtain the subject high-quality compound in a short time by cooling an effluent gas of an ammoxidation reactor by a quenching column, absorbing a product in water by an absorbing column, separating the absorbed substance into a water and an organic layers and collecting the product from the organic layer. SOLUTION: A reactor effluent obtained by the ammoxidation of propylene or isobutylene is transferred to a quenching column and a hot effluent gas is cooled by bringing it into contact with mist. The cooled reactor effluent overhead is passed through a conduit 1 to the bottom of an absorbing column 5 to absorb crude acrylonitrile or methacrylonitrile in water introduced through a conduit 3. Then the solution is sent through a first distillation column 13 to a first decanter 19 to form a first water layer and a first organic layer containing acrylonitrile or methacrylonitrile. The first organic layer is transferred a second distillation column 27 to a second decanter 33 to form a second water layer and a second organic layer to recover the objective compound from the second organic layer.

公开(公告)号：BR9503515A

公开(公告)日：1996-06-04

申请号：BR9503515

申请日：1995-08-01

Applicant: STANDARD OIL CO OHIO

Inventor： REILING VINCENT G ,  RINKER JEFFREY E ,  MCDONEL TIMOTHY R ,  SARNA JOSEPH C

IPC: B01J8/24 ,  B01J12/02 ,  C01C3/02 ,  C07C253/24 ,  C07C253/26 ,  C07C253/34 ,  C07C255/08 ,  C01C1/10

Abstract: Redn. in the amt. of unreacted ammonia exiting the reactor in acrylonitrile mfr., comprises: (a) contacting with a fluid bed catalyst, in the lower portion of a fluid bed reactor, ammonia, O2 and a hydrocarbon comprising propylene or propane, to produce acrylonitrile; (b) feeding O2 free of any oxygenate cpds. into the upper portion of the fluid bed reactor, at a point where the additional O2 does not affect the reaction, but reacts with at least some of the unreacted ammonia; (c) cooling the reactor effluent contg. acrylonitrile by feeding into a water quench column; (d) removing unwanted impurities; and (e) recovering acrylonitrile from the quench column.

公开(公告)号：ZA9504931B

公开(公告)日：1996-02-07

申请号：ZA9504931

申请日：1995-06-14

Applicant: STANDARD OIL CO OHIO

Inventor： REILING VINCENT G ,  RINKER JEFFREY E ,  MCDONEL TIMOTHY R ,  SARNA JOSEPH C

IPC: B01J8/24 ,  B01J12/02 ,  C01C3/02 ,  C07C253/24 ,  C07C253/26 ,  C07C253/34 ,  C07C255/08 ,  C07C

CPC classification number: C07C253/24 ,  C07C253/26 ,  Y02P20/52 ,  C07C255/08

公开(公告)号：ES2144100T3

公开(公告)日：2000-06-01

申请号：ES95304532

申请日：1995-06-27

Applicant: STANDARD OIL CO OHIO

Inventor： MCDONEL TIMOTHY R ,  RINKER JEFFREY E ,  REILING VINCENT G ,  SARNA JOSEPH C

IPC: B01J8/24 ,  B01J12/02 ,  C01C3/02 ,  C07C253/24 ,  C07C253/26 ,  C07C253/34 ,  C07C255/08

Abstract: Redn. in the amt. of unreacted ammonia exiting the reactor in acrylonitrile mfr., comprises: (a) contacting with a fluid bed catalyst, in the lower portion of a fluid bed reactor, ammonia, O2 and a hydrocarbon comprising propylene or propane, to produce acrylonitrile; (b) feeding O2 free of any oxygenate cpds. into the upper portion of the fluid bed reactor, at a point where the additional O2 does not affect the reaction, but reacts with at least some of the unreacted ammonia; (c) cooling the reactor effluent contg. acrylonitrile by feeding into a water quench column; (d) removing unwanted impurities; and (e) recovering acrylonitrile from the quench column.

公开(公告)号：BG101737A

公开(公告)日：1999-04-30

申请号：BG10173797

申请日：1997-07-03

Applicant: STANDARD OIL CO OHIO

Inventor： WACHTENDORF PAUL T ,  RINKER JEFFREY E ,  GOLDBOLE SANJAY P

IPC: C07C253/34 ,  C07C255/08

Abstract: The method for the acrylonitrile or methacrylonitrileregenration produced from the reactor flow in the amoxidation ofpropylene or isobutylene includes admission of the reactor flowacross an absorption, regeneration and desorption column. Themaximum pressure in the regeneration column is increasedmechanically by about 0.00018 to 0.035 mPa in order to improve thehydraulic capacity of the regenration and desorption column.8 claims

公开(公告)号：ZA954931B

公开(公告)日：1996-02-07

申请号：ZA954931

申请日：1995-06-14

Applicant: STANDARD OIL CO OHIO

Inventor： REILING VINCENT G ,  RINKER JEFFREY E ,  MCDONEL TIMOTHY R ,  SARNA JOSEPH C

IPC: B01J8/24 ,  B01J12/02 ,  C01C3/02 ,  C07C253/24 ,  C07C253/26 ,  C07C253/34 ,  C07C255/08 ,  C07C

Abstract: Redn. in the amt. of unreacted ammonia exiting the reactor in acrylonitrile mfr., comprises: (a) contacting with a fluid bed catalyst, in the lower portion of a fluid bed reactor, ammonia, O2 and a hydrocarbon comprising propylene or propane, to produce acrylonitrile; (b) feeding O2 free of any oxygenate cpds. into the upper portion of the fluid bed reactor, at a point where the additional O2 does not affect the reaction, but reacts with at least some of the unreacted ammonia; (c) cooling the reactor effluent contg. acrylonitrile by feeding into a water quench column; (d) removing unwanted impurities; and (e) recovering acrylonitrile from the quench column.